On their website Steel Envelope, ArcelorMittal Europe - Flat Products present their extensive coating offer for façades, roofing, framing and interior applications. Specially designed for architects, the tool's user friendly structure helps you identify the appropriate coating for your needs, based on their aesthetic qualities and technical properties.

ArcelorMittal Europe – Flat Products offers a wide range of prepainted and metallic coated steels for façade applications. With the online toolbox Steel Envelope, it is now a lot easier to find the coating that most suits your needs in terms of aesthetics as well as technical performance.

Steel Envelope provides you with all the necessary details about these coatings, including their surface appearence, resistance characteristics, composition and colour charts. Furthermore, the website offers inspirational images to spark creativity and enables you to order product samples online.

All product data sheets can be downloaded as pdf files and many of the brochures are also available in different languages.

For the past 15 years, ArcelorMittal has been developing and testing a new range of organic coated steels which fulfil steel's promise as a strong and durable building material.

"Nature" is the new collection of steels for the building industry that offers exceptional technical advantages and is well-placed to respond to present and future environmental regulations. Nspired by Nature, the range does not contain hexavalent chromium or heavy metals (such as lead or hexavalent chromium complex).

100% sustainable

Steel is an entirely environmentally neutral product which is infinitely recyclable.

However, in the building industry, steels are sometimes treated with coatings to meet fire regulations or improve the appearance of the metal. In rare cases, the coatings may contain ingredients which can leach into the environment or cause harm to humans.

ArcelorMittal’s new Nature collection of organic coated steels already complies with current and future regulation of the European Union REACH, on the Registration, Evaluation, Authorisation and Restriction of Chemical Substances. REACH aims to improve the protection of human health and the environment through better and earlier identifi cation of the intrinsic properties of chemical substances. Changes to REACH, which will restrict the use of Substances of Very High Concern (SVHC), are expected.

Anticipating this, ArcelorMittal has already ensured that the Nature collection is 100% free of hexavalent chromium and heavy metals. This is not the case for many imported organic coated steels brought into Europe. The quality of imported steels can be poor and they often contain SVHC.

Extensive testing programme

The durability and versatility of organic coated steel has led to its wide use in the building industry. External applications include wall cladding, roofing, and guttering. Internal applications include wall panels, suspended ceilings and lighting.

ArcelorMittal’s Nature range includes steels for both internal and external applications (see beneath). Depending on environmental conditions, the steels are guaranteed for up to 30 years against corrosion and peeling. Nature has undergone an extensive testing programme over several years. The steels have been exposed to different sources of corrosion and weathering conditions at locations around the world. The results were excellent, especially with regard to corrosion resistance (including edge corrosion), paint peeling and fi lm integrity.

Here to help

For each and every product belonging to our Nature Granite® and Estetic® collection ArcelorMittal Flat Carbon Europe has developed an Environmental Product Declaration (EPD) allowing open access to full Life Cycle Assessment (LCA) data.

To help you choose the right product for each project, ArcelorMittal has a team of expert R&D engineers standing by, who will not only help you understand what impact your building will have on the environment, they will work with you to reduce those effects. They can also help you optimise the structural use of profiles or purlins, calculating load tables, and providing fire resistance data. In other words our ArcelorMittal team is there to provide you with the tools and Nspiration you need to design and engineer each project.

ArcelorMittal’s Nature coated steel products are unique in both texture and appearance. They also have special properties which enhance their appearance or contribute to the comfort of the building.

Naturally energy efficient

Granite® Comfort greatly enhances thermal comfort in warm climates. The organic coating reflects sunlight and radiant heat back into the atmosphere. It absorbs significantly less heat than current organic coated steels. Interiors can therefore be kept up to a few degrees cooler, helping to save as much as 15% on electricity for air conditioning. With its low surface temperature and added UV protection, Granite® Comfort has a long life. It is available in a smooth texture.

Use our online simulation tool and discover how you can improve the comfort of your building and save on energy costs each year, anywhere in Europe. (seel link in the right column).

Naturally in harmony with the environment

Another example is Granite® Wood which comes in several wood patterns and colours including oak and palisander. With four layers of paint and a 35 μm outdoor paint coating, the warmth and the aesthetics of the wood finish combine well with the sustainable advantage of steel.

Naturally promoting renewable energy

Steel is also the natural choice when it comes to generating renewable energy. For photovoltaic installations, Granite® HDX PV provides resistance to UV weathering and corrosion, even in severe climatic conditions. It is also aesthetically pleasing, blending perfectly into the surrounding environment.

With a long guarantee against perforation, Granite® HDX PV is perfectly suited for photovoltaic roofing systems.

Outdoor use:

Granite® Standard
Granite® Boosted
Granite® Diamond
Granite® Farm
Granite® Forever
Granite® HD
Granite® HDS
Granite® HDX
Granite® HDX PV
Granite® HDX Cool
Granite® PVDF
Granite® Shutter
Granite® Tex
Granite® Wood
Granite® Cloudy
Granite® Comfort
Granite® Deep Mat
Granite® Flex
Granite® Rain

Indoor use:

Estetic® Ambient® Platinium
Estetic® Clean
Estetic® Flex
Estetic® Lighting
Estetic® Mat
Estetic® Tex
Estetic® Standard
xcelcolour®
xceldesign®

ArcelorMittal has updated the Environmental Product Declaration (EPD) for organic coated steel coils Granite® and Estetic® and an independent company certified conformity with ISO 14040/44 and EN 15804 standards. This demonstrates the high efficiency of these innovative steel solutions for sustainable buildings and helps ArcelorMittal customers to gain credits for sustainability certifications like LEED or BREEAM.

Conformity with ISO 14040/44 and EN 15804 standards has been certified by an independent company who performed a critical review, ensuring that the analysis was conducted in accordance with these  standards.

This external review is also a requirement for the use of EPDs in BREEAM and LEED certifications. The updated ArcelorMittal Organic Coated Steel EPD now  helps our customers gain credits in these certifications.

About Granite® and Estetic®

Granite® and Estetic® are organic coated steels (OCS) used in the construction of environmentally friendly buildings. Organic coated steels can be found in all industry sectors, in building and construction they are used for outdoor and indoor applications such as profiles for cladding, roofing, tiles, gutters etc.

Both Granite® and Estetic® are part of the ArcelorMittal Nature range and offer the following benefits:

- Free of hexavalent chromium compounds (SVHC)
- Free of lead and other heavy metals
- Guaranteed up to 30 years
- Fully tested by our R&D experts to extreme corrosion and weathering conditions, both in the laboratory and outdoors
- Innovative aesthetics for a more harmonious integration in the environment
- Reflective coatings allow more comfortable living conditions, reducing indoor temperatures by a few degrees in hot and sunny environments